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United States Patent | 5,746,284 |
Johnson | May 5, 1998 |
A vehicle back-up safety device comprising a sensing system for detecting the presence of an obstruction within a prescribed area behind the vehicle while a user is driving in reverse. In response to a signal from the sensing system signifying the presence of a an obstruction, a control means activates a pair of electrically-motivated plunger assemblies to force fluid into the vehicle's brake line system, thereby activating the vehicle's brakes.
Inventors: | Johnson; David (Rte. 1, Box 788-B, Hortense, GA 31543) |
Appl. No.: | 632358 |
Filed: | April 10, 1996 |
Current U.S. Class: | 180/167; 60/545; 180/275; 303/191 |
Intern'l Class: | B60T 007/16 |
Field of Search: | 180/167,169,271,274,275 303/191,193 60/545,591 188/353 |
2588815 | Mar., 1952 | Fasolino | 180/275. |
3972382 | Aug., 1976 | Takayama et al. | 303/193. |
4407388 | Oct., 1983 | Steel | 180/275. |
4574908 | Mar., 1986 | Brick | 180/169. |
4591019 | May., 1986 | Fisher et al. | 180/275. |
4799570 | Jan., 1989 | Andersson et al. | 180/275. |